Porn Game: Succubus Tales Chapter 1 Niccis Revenge v 1.0 by Senryu-sensei

You will play as Nicci, a powerful succubus, who, after being betrayed by her "boss", an even more powerful Demon Lord,
is forced to fight a group of exorcist.
After the battle she's about to die, and so her only way to survive is to transfer her soul inside one of the exorcst's body, a nun to be precise, and take control of it.
To make sure to not leave any trace behind, she have to leave her own village, and burn her house.
After a long travel she reach, exhausted, a remote village, where she plan to regain a portion of her lost energy due to the soul transfer and start her revenge!
To regain her lost energy she need to spread corruption and lust among villagers ( but of course, she's a succubus after all!)
And this is the "plot" of chapter one"!

Succubus Tales Chapter 1 Niccis Revenge v 1.0 by Senryu-sensei game preview

online.